H04R 7/045

Using the distributed mode principle, i.e. whereby the acoustic radiation is emanated

Official title: {using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion}

H04R7/045 (Using the distributed mode principle, i.e. whereby the acoustic radiation is emanated) appears on 869 US grants and 1,018 published applications in this corpus.

Search patents in H04R

Granted patents: 869
Published applications: 1,018
Assignees: 263
Inventors: 1,317
Latest grant: 15 Sep 2026

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H04R 7/045: granted patents and published applications per publication year
Year	Granted patents	Published applications
1982	1	0
1983	0	0
1984	0	0
1985	0	0
1986	1	0
1987	0	0
1988	0	0
1989	0	0
1990	0	0
1991	0	0
1992	0	0
1993	0	0
1994	0	0
1995	0	0
1996	0	0
1997	0	0
1998	1	0
1999	1	0
2000	5	0
2001	28	20
2002	20	28
2003	18	18
2004	16	14
2005	12	25
2006	14	24
2007	15	18
2008	8	16
2009	9	15
2010	8	12
2011	6	12
2012	18	8
2013	9	25
2014	12	28
2015	34	61
2016	43	39
2017	42	33
2018	33	32
2019	45	73
2020	72	125
2021	90	75
2022	69	61
2023	62	93
2024	73	79
2025	66	58
2026	38	26

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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